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    • 3. 发明申请
    • Perforating Apparatus for Enhanced Performance in High Pressure Wellbores
    • 用于提高高压井筒性能的穿孔装置
    • US20100300750A1
    • 2010-12-02
    • US12473569
    • 2009-05-28
    • John H. HalesJohn D. BurlesonJohn P. Rodgers
    • John H. HalesJohn D. BurlesonJohn P. Rodgers
    • E21B43/117E21B43/116
    • E21B43/117
    • A perforating apparatus (50) includes a carrier gun body (52) having a plurality of radially reduced sections (54). The radially reduced sections (54) have a nanocomposite outer layer (72). A charge holder (62) is positioned within the carrier gun body (52). A plurality of shaped charges (56) are supported by the charge holder (62). The shaped charges (56) each have an initiation end and a discharge end. The discharge ends of the shaped charges (56) are disposed proximate the radially reduced sections (54) of the carrier gun body (52) such that the jets formed upon detonation of the shaped charges (56) travel through the radially reduced sections (54). The nanocomposite outer layers (72) of the radially reduced sections (54) enable enhanced performance of the perforating apparatus (50) in high pressure and high temperature wellbores.
    • 穿孔装置(50)包括具有多个径向减小部分(54)的载体枪体(52)。 径向减小的部分(54)具有纳米复合材料外层(72)。 电荷保持器(62)位于载体枪体(52)内。 多个成形电荷(56)由电荷保持器(62)支撑。 成型电荷(56)各自具有起始端和放电端。 成形电荷(56)的放电端设置在载体枪体(52)的径向减小部分(54)附近,使得在成形电荷(56)爆炸时形成的射流行进通过径向减小的部分(54) )。 径向减小部分(54)的纳米复合材料外层(72)能够在高压和高温井筒中提高射孔装置(50)的性能。
    • 9. 发明授权
    • Perforating string with longitudinal shock de-coupler
    • 带纵向冲击式去耦合器的穿孔线
    • US08397800B2
    • 2013-03-19
    • US13325866
    • 2011-12-14
    • John P. RodgersJohn D. BurlesonMarco SerraTimothy S. GlennEdwin A. Eaton
    • John P. RodgersJohn D. BurlesonMarco SerraTimothy S. GlennEdwin A. Eaton
    • E21B43/11E21B17/07
    • E21B43/1195E21B17/07
    • A shock de-coupler for use with a perforating string can include perforating string connectors at opposite ends of the de-coupler, a longitudinal axis extending between the connectors, and a biasing device which resists displacement of one connector relative to the other connector in both opposite directions along the longitudinal axis, whereby the first connector is biased toward a predetermined position relative to the second connector. A perforating string can include a shock de-coupler interconnected longitudinally between components of the perforating string, with the shock de-coupler variably resisting displacement of one component away from a predetermined position relative to the other component in each longitudinal direction, and in which a compliance of the shock de-coupler substantially decreases in response to displacement of the first component a predetermined distance away from the predetermined position relative to the second component.
    • 用于穿孔线的冲击去耦合器可以包括在去耦合器的相对端处的穿孔串连接器,在连接器之间延伸的纵向轴线以及抵抗两个连接器相对于另一个连接器的位移的偏置装置 沿着纵向轴线的相反方向,第一连接器相对于第二连接器偏向预定位置。 射孔绳可以包括纵向互相连接的穿孔针组件之间的冲击去耦合器,其中冲击去耦合器在每个纵向方向上可相对于另一部件远离预定位置变化地抵抗一个部件的位移, 响应于第一部件相对于第二部件离开预定位置预定距离的位移,冲击去耦合器的顺应性大大降低。